Cycloids containing nitrogen. 



r08 



1931 



CYCLOIDS CtHtON 



Trioxypyridylacetic acid. 

 Best A: Thorpe, (i loOo. 



--Keto-1-carboxydiliydroisopyrrolyl 

 acetic acid. 

 5-Cyano derivative 

 /N = C.CH(CN).C02H 

 C0< i 



^CH^.CH.COaH 

 Best ct Thorpe. 64365. 



CYCLOID C;H90N 



7-PicoIylalkine CjH^X.CH^.CHj.OH 

 Loffler, K. u. Stietzel, F. B., 42, (12.5;. 



CYCLOID CrHOaN 



--Keto-1-methyltetrahydropyiTO- 

 lideneacetic acid. 



."-Cyanu ueiuvative 



CO 



/NMe.C : CXCiSij.COjH 



^■CH^-CH, 

 Best & Thorpe. (iJSO.j. 



CYCLOID CtHisON 



7-Pipecolylalkine. 



LoflQer, K. u. Stietzel, F. B., 42, [129). 

 CYCLOID CsHsOeN 



Trioxycarbetlioxypyridylacetic 



acid. 

 Best &. Thorpe. r,rM3. [Lactone.] 



CYCLOID CeHiOjN 



Pyridylacrylic acid. 



Ethvl i:.-tj;i; and its salts. 

 Lbmer u. Fliigel. V,.. 42, i3423j. 



CYCLOID C,H703N 



Trioxindole 



{is-ll ydroxij<lioxindole) 

 and the acetate and benzuate. 

 HeUer, G. B., 42, (473). 



CYCLOID C5H5O N 



Lutidine carboxylic acid. 



4-Chloko deiuvative. Etlnjl ester 



Also ASIUNOLUTIDIKE CARBOXYLIC ACID. 



Michaelis. A., 366, (339j. 



CYCLOID C,H,0 N 



2-Keto-4-carboxy- 1 -metliyltetra- 

 liydropyiTolideneacetic acid. 



5-CVANO DEUIVATIVE 



/NMe.C : C(CN).C02H 

 CO/ I 



^CIIj-CH.CO.H 

 Best & Thorpe. 64365. 



CYCLOID CeHisON 



4:0: 6-Trimethyl-A-tetrahydro- 

 --pyridone. 



3-AmINO DERIVATIVE 



Piccinini. Torino, Atti Ace. sc, 43, 

 1908, (890-9121. 



CYCLOID C:Hi302N 



3-0xy-4 : : 0-tiimetliyl-A -teti^a- 

 hydro-2-pyridone 



Piccinini. Torino, Atti Ace. so , 43, 

 1908, (890-912). 



CYCLOIDS CHisON 



Tropine. 

 Barrowclifif & Tutin. G4119. [Con- 



fifiiuation of, and its benzoyl derivative 

 anil their d-caniphor.sulplionates.] 



V'-Tropine. 



Barrowcliff <t Tutin. 64119. [Con- 

 figuration of, and its benzoyl derivatives 

 and their (f-caniphorsulphonates aud 

 c/-bromocani2:ihorsiilj)honates.] 



TrinietliylpyiTolidone. 



Amino deiuvative 

 ^,,^ XMe.CO 



CH^. C(XH2).CH, 

 and the corresponding phenvlthiourea 

 CijUjiOXjS 

 Kohn. M., 29, 1 497 . 



CYCLOID CHuOjN 



Piperidylpropionic acid 



C5H,oN.(:h,.ch2.co2H 



Lbmer, K. u. Kaim, H. B., 42, (97). 

 CYCLOIDS C,Hi;ON 



'■^-Oxy-a-propylpiperidine. 

 Lofner u. Flugel. B., 42, (_3423j. 



